Hi, try
http://www.mobilewhack.com/pda/pocke...t_browser.html for your browser
as for the abysmal data limits on the O2 network, I would unlock the XDA2 and use it on an orange contract sim which (in my case at least) has unlimited GPRS data (costs me £4 extra per month)
more info and support which is XDA / XDAII specific is available at
http://www.xda-developers.com